{"id":"https://openalex.org/W2978523486","doi":"https://doi.org/10.1109/access.2019.2944788","title":"Generalized Time-Updating Sparse Covariance-Based Spectral Estimation","display_name":"Generalized Time-Updating Sparse Covariance-Based Spectral Estimation","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2978523486","doi":"https://doi.org/10.1109/access.2019.2944788","mag":"2978523486"},"language":"en","primary_location":{"id":"doi:10.1109/access.2019.2944788","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2944788","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08854140.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08854140.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100736674","display_name":"Yongchao Zhang","orcid":"https://orcid.org/0000-0001-5634-6156"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongchao Zhang","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0001-5634-6156","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037213595","display_name":"Andreas Jakobsson","orcid":"https://orcid.org/0000-0002-2156-6973"},"institutions":[{"id":"https://openalex.org/I1279596006","display_name":"Statistics Sweden","ror":"https://ror.org/05x7wz523","country_code":"SE","type":"government","lineage":["https://openalex.org/I1279596006"]},{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Andreas Jakobsson","raw_affiliation_strings":["Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I1279596006","https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027281041","display_name":"Deqing Mao","orcid":"https://orcid.org/0000-0002-7408-1654"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Deqing Mao","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-7408-1654","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100343725","display_name":"Yin Zhang","orcid":"https://orcid.org/0000-0002-6761-2269"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yin Zhang","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-6761-2269","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027924825","display_name":"Yulin Huang","orcid":"https://orcid.org/0000-0003-3930-9323"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yulin Huang","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100660972","display_name":"Jianyu Yang","orcid":"https://orcid.org/0000-0002-4726-8384"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianyu Yang","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":1.2453,"has_fulltext":true,"cited_by_count":14,"citation_normalized_percentile":{"value":0.81016904,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"7","issue":null,"first_page":"143876","last_page":"143887"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10534","display_name":"Structural Health Monitoring Techniques","score":0.9987999796867371,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/covariance","display_name":"Covariance","score":0.6612436771392822},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5753275156021118},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.48266342282295227},{"id":"https://openalex.org/keywords/estimation-of-covariance-matrices","display_name":"Estimation of covariance matrices","score":0.4814145565032959},{"id":"https://openalex.org/keywords/covariance-intersection","display_name":"Covariance intersection","score":0.45078080892562866},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4309902787208557},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.4180508553981781},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.36747485399246216},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2890821695327759},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.2339472770690918},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.10401546955108643}],"concepts":[{"id":"https://openalex.org/C178650346","wikidata":"https://www.wikidata.org/wiki/Q201984","display_name":"Covariance","level":2,"score":0.6612436771392822},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5753275156021118},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.48266342282295227},{"id":"https://openalex.org/C180877172","wikidata":"https://www.wikidata.org/wiki/Q5401390","display_name":"Estimation of covariance matrices","level":3,"score":0.4814145565032959},{"id":"https://openalex.org/C83042196","wikidata":"https://www.wikidata.org/wiki/Q5178898","display_name":"Covariance intersection","level":4,"score":0.45078080892562866},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4309902787208557},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.4180508553981781},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.36747485399246216},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2890821695327759},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.2339472770690918},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.10401546955108643},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2019.2944788","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2944788","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08854140.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:b12a52bb67fc47b8b937a6b89c4cc50e","is_oa":true,"landing_page_url":"https://doaj.org/article/b12a52bb67fc47b8b937a6b89c4cc50e","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 7, Pp 143876-143887 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2019.2944788","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2944788","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08854140.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1860448674","display_name":"\u673a\u8f7d\u96f7\u8fbe\u524d\u89c6\u6210\u50cf\u4e0e\u96fe\u973e\u5929\u5019\u4e0b\u7740\u9646\u6307\u793a\u65b9\u6cd5\u7814\u7a76","funder_award_id":"61671117","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7641405492","display_name":null,"funder_award_id":"61901092","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321543","display_name":"China Postdoctoral Science Foundation","ror":"https://ror.org/0426zh255"},{"id":"https://openalex.org/F4320322581","display_name":"Vetenskapsr\u00e5det","ror":"https://ror.org/03zttf063"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2978523486.pdf","grobid_xml":"https://content.openalex.org/works/W2978523486.grobid-xml"},"referenced_works_count":29,"referenced_works":["https://openalex.org/W210359992","https://openalex.org/W1970033169","https://openalex.org/W1974718273","https://openalex.org/W1979905895","https://openalex.org/W1986195997","https://openalex.org/W1999635939","https://openalex.org/W2011046740","https://openalex.org/W2017107531","https://openalex.org/W2029108056","https://openalex.org/W2034829035","https://openalex.org/W2040539862","https://openalex.org/W2063870433","https://openalex.org/W2088402448","https://openalex.org/W2107180520","https://openalex.org/W2112258609","https://openalex.org/W2115141757","https://openalex.org/W2129638017","https://openalex.org/W2134261098","https://openalex.org/W2135046866","https://openalex.org/W2157871825","https://openalex.org/W2167254450","https://openalex.org/W2550827280","https://openalex.org/W2557924664","https://openalex.org/W2604125562","https://openalex.org/W2754841153","https://openalex.org/W2799897273","https://openalex.org/W2803285976","https://openalex.org/W2973140465","https://openalex.org/W6768209487"],"related_works":["https://openalex.org/W2126916073","https://openalex.org/W2040968278","https://openalex.org/W2022823194","https://openalex.org/W1974588588","https://openalex.org/W2572601863","https://openalex.org/W1489099099","https://openalex.org/W4234846126","https://openalex.org/W2118568436","https://openalex.org/W2018001152","https://openalex.org/W1678480493"],"abstract_inverted_index":{"Recently,":[0],"the":[1,38,56,62,87,91,118,129,133,139],"time-updating$q$-norm":[2],"sparse":[3],"covariance-based":[4],"estimator":[5],"($q$-SPICE)":[6],"was":[7],"developed":[8],"for":[9,53,79,107],"online":[10],"spectral":[11,57],"estimation":[12,78],"of":[13,117,132],"stationary":[14,124],"signals.":[15,27,81,114],"In":[16],"this":[17,19],"work,":[18],"development":[20],"is":[21,47,120],"furthered":[22],"to":[23,51,138],"deal":[24],"with":[25,112],"non-stationary":[26,80,113,126],"By":[28],"introducing":[29],"a":[30,35,70],"weighting":[31],"matrix":[32],"defined":[33],"by":[34],"forgetting":[36],"factor,":[37],"generalized":[39,84,134],"least":[40],"absolute":[41],"shrinkage":[42],"and":[43,101,125],"selection":[44],"operator":[45],"(LASSO)":[46],"generalized,":[48],"in":[49,55,69],"order":[50],"allow":[52],"changes":[54],"content.":[58],"As":[59],"shown":[60],"here,":[61],"resulting":[63],"LASSO":[64],"formulation":[65,135],"can":[66],"be":[67],"solved":[68],"simple":[71],"manner":[72],"using":[73,122],"cyclic":[74],"minimization,":[75],"enabling":[76],"recursive":[77],"The":[82,115],"proposed":[83],"time-updating$q$-SPICE":[85],"offers":[86],"same":[88],"benefits":[89],"as":[90,136],"original":[92,140],"estimator,":[93],"including":[94],"being":[95],"computationally":[96],"efficient":[97],"at":[98],"constant":[99],"computational":[100],"storage":[102],"cost,":[103],"but":[104],"also":[105],"allows":[106],"substantial":[108],"improvements":[109],"when":[110],"dealing":[111],"performance":[116,131],"method":[119],"evaluated":[121],"both":[123],"signals,":[127],"indicating":[128],"preferable":[130],"compared":[137],"time-updating":[141],"SPICE":[142],"algorithm.":[143]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":4}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2025-10-10T00:00:00"}